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Contains:  California nebula, NGC 1499
Getting plate-solving status, please wait...
California Nebula (NGC 1499), 


            Gary Lopez
California Nebula (NGC 1499)

California Nebula (NGC 1499)

Technical card

Resolution: 3395x4490

Dates:Nov. 25, 2018Dec. 6, 2018Dec. 7, 2018

Astrodon Ha 3nm-31mm: 176x180" (gain: 139.00) -15C bin 1x1
Astrodon OIII 3nm-31mm: 126x180" (gain: 139.00) -15C bin 1x1
Astrodon SII 3nm-31mm: 119x180" (gain: 139.00) -15C bin 1x1

Integration: 21.1 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 15.38 days

Avg. Moon phase: 31.36%

Bortle Dark-Sky Scale: 4.00 job: 2564094

RA center: 60.794 degrees

DEC center: 36.355 degrees

Pixel scale: 1.414 arcsec/pixel

Orientation: 283.987 degrees

Field radius: 1.106 degrees

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard


This is a reprocessing of data that I captured and posted several months ago. The original processing approach was SHO with a palette focussing on maximizing structural detail. In this version I attempted a "natural" palette using Steve Milne's pixel math formula. While I like the colors of this new approach, I am still drawn to the detailed structure revealed by the original palette and approach. What do you think? Version B is the original SHO approach.



Gary Lopez
License: None (All rights reserved)


  • Final
    California Nebula (NGC 1499), 


            Gary Lopez
  • California Nebula (NGC 1499), 


            Gary Lopez


Original SHO with a palette to maximize structural detail

Sky plot

Sky plot


California Nebula (NGC 1499), 


            Gary Lopez